﻿.clearfix{
	&:after{
		content:"";
		clear:both;
		visibility:hidden;
		display:block;
		height:0;
	}
	
}
.fl{
	float:left
}
.fr{
	float:right
}
.mask{
	background-color:rgba(255,255,255,.9);
	position: absolute;
	width:100%;
	height:100%
}
.head{
	@extend .clearfix;
	width:100px;
	height:200px;
}
.smllmask{
	@extend .mask;
}
.bigmask{
	@extend .mask
}